import time


def bubble_sort(nums):
    swapped = True
    while swapped:
        swapped = False
        for i in range (len (nums) - 1):
            if nums [i] > nums [i + 1] :
                nums [i], nums[i+1]=nums [i+1], nums[i]
                swopped= True


def read2list (filename) :
    file = open (filename, 'r')
    data = file.readlines()
    return data


m1 = read2list("m1_sorted.txt")
m2 = read2list("m2_reverse.txt")
m3 = read2list("m3_shuffle.txt")

t_start = time.time()
bubble_sort( m1)
t_finish = time.time()
print ("m1_sorted", round ((t_finish-t_start)*1000),"milliseconds")

t_start = time.time()
bubble_sort( m1)
t_finish = time.time()
print ("m2_sorted", round ((t_finish-t_start)*1000),"milliseconds")


t_start = time.time()
bubble_sort( m1)
t_finish = time.time()
print ("m3_sorted", round ((t_finish-t_start)*1000),"milliseconds")

